1061321103 has 8 divisors (see below), whose sum is σ = 1572327600. Its totient is φ = 707547384.

The previous prime is 1061321081. The next prime is 1061321111. The reversal of 1061321103 is 3011231601.

It is not a de Polignac number, because 1061321103 - 2¹⁰ = 1061320079 is a prime.

It is a super-2 number, since 2×1061321103² = 2252804967346273218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061321153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19654068 + ... + 19654121.

It is an arithmetic number, because the mean of its divisors is an integer number (196540950).

Almost surely, 2^1061321103 is an apocalyptic number.

1061321103 is a deficient number, since it is larger than the sum of its proper divisors (511006497).

1061321103 is an equidigital number, since it uses as much as digits as its factorization.

1061321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39308198 (or 39308192 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1061321103 is about 32577.9235526146. The cubic root of 1061321103 is about 1020.0362357369.

Adding to 1061321103 its reverse (3011231601), we get a palindrome (4072552704).

The spelling of 1061321103 in words is "one billion, sixty-one million, three hundred twenty-one thousand, one hundred three".